Wolf Mask Location

In “Der Eisendrache” section of the map. Turn right at the starting area and jump to Shangri-La. Head up the stairs and look for a room with pyramid as you need to activate zero gravity. Standing on the four platforms around the pyramid until they start to shine. Then throw a grenade inside the hole in the wall at the top of the Crypt and a wolf skull will float / fall out.

The Wolf skull will be floating in front of the Crypt indicating you've activated it. Remember to collect the blue souls you need next when the zero gravity is on as it needs the souls of the zombies & parasites you kill to feed it. Kill 15 of these enemies in close proximity to the wolf skull for the killed zombies’ souls to be sucked into the wolf skull.

The wolf skull will disappear alongside an audio cue once you collect enough souls, and the Wolf Mask can be collected at the stage with the clothing dolls & chests around it; Go through the nearby archway and follow the path down to find a door that leads to a derelict theater where it is at the back of the stage.

Interact with the mannequin that’s wearing the Wolf Mask AKA Wolf Hat to equip it. Now you can sprint longer with this “Sprint duration increased” ability.